package com.nowcoder.code.hjnc;

import com.algorithm.model.ListNode;

public class NC33 {

    public ListNode Merge(ListNode list1, ListNode list2) {

        ListNode result = new ListNode(-1);
        ListNode node = result;
        while (list1 != null && list2 != null) {
            if (list1.val < list2.val) {
                node.next = list1;
                list1 = list1.next;
            } else {
                node.next = list2;
                list2 = list2.next;
            }
            node = node.next;
        }

        if (list1 != null) {
            node.next = list1;
        } else {
            node.next = list2;
        }
        return result.next;
    }

}
